初一数学上册计算题天天练强烈推荐51文档格式.docx
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17
8+—+—14×
(-4)+7×
(-4)
315
347
(-+-)×
-(-66)×
2×
(-27)
458
214
-(—+—-—)×
361×
[8+(-5)3]
343
6、合并同类项。
-4a+(6a-7)a-(5a-8p)+(5p+6a)
6(7m+6)+2m2+(8x+10)+(2x+1)
2(-ab-5a)-(2a+9b)10(abc-2a)+8(9a+8abc)
7(xy-8z)-(-xy-8z)-7(pq-pr)+(2pq-pr)
7、解方程。
5x1
—x-—=—0.9x+0.4=9.9+4.8x
943
21
—+5x=2-—x8(x+9)+2(x-5)=19
33
13
—(3x+1)=—x-43x+8(18-x)=-2
55
y-3y+1
——=8-——5x+1.5(x-2)=15
46
12
—(3-2x)=—(2x-1)6(3x-6)=5
59
-3—,5,0,-5.6
—,18,14,-5.3
6—,3.2,8,-0.8
7
(1)-17与0
(2)-3.25与0.5(3)|-9.9|与|-2.6|
(4)-—与-—(5)-13与-|-2|(6)|-0.6|与|-7.1|
39
71
1+—-—16×
(-14)-8×
(-14)
618
612
-(-180)÷
10×
(-24)
563
187
4488×
[15+(-5)3]
878
8m-(9m+5)5m+(7m+8d)+(2d+m)
-6(5n-6)+8n4-(5m+9)+(4m+10)
3(ab+2a)-(2a-4b)18(abc+9a)-4(3a-3abc)
3(xy-6z)+(-xy-2z)-9(pq+pr)-(3pq+pr)
7x1
—x+—=—0.2x+0.8=0.3-2.2x
926
41
—+3x=6-—x4(x-1)-6(x+8)=13
11
—(5x-6)=—x-82x+2(4-x)=-2
25
y+2y-1
——=8-——1x-6(x-4)=50
26
—(2-4x)=—(4x+3)3(3x+9)=19
65
-1—,3,0,-1.6
—,19.5,-2,2.4
4
5—,-1.7,-10,0.48
(1)-11与1
(2)-2.75与-1.75(3)|-4.9|与|2.9|
(4)-—与-—(5)0与-|-9|(6)|-47|与|-4.1|
93
77
1-—-—19×
(-9)+12×
(-9)
612
766
(-+-)÷
-(-114)÷
4×
675
316
-(—-—+—)×
842×
[15+(-4)2]
437
-8b-(7b+1)5b-(7b+2c)+(8c-3b)
-3(9s-1)+2s5-(9a-7)-(5a+8)
7(ab+2a)-(2a+6b)8(abc+9a)+6(7a+5abc)
4(xy+3z)+(-xy+2z)-6(pq-pr)-(8pq+pr)
—x+—=—0.9x+0.2=5.1-5.2x
966
—+4x=6+—x9(x+1)-6(x-3)=10
53
14
—(9x-3)=—x-69x+5(14+x)=-2
y-2y-2
——=6-——1x+6.5(x-2)=50
—(4-2x)=—(5x-1)6(9x-1)=4
23
1—,-4.5,0,-8
-—,-16.5,-4,-9.4
7—,-4.85,9,0.72
(1)-15与-8
(2)-2.75与-1.25(3)|-7.3|与|-2.2|
(4)-—与-—(5)16与-|-1|(6)|-67.5|与|-6.9|
713
1-—-—9×
(-19)+15×
(-19)
615
836
-(-168)÷
(-15)
747
831
1129×
[7+(-2)3]
744
-9a-(7a+6)a+(8a+5s)+(6s+a)
-2(6b-9)-8b5+(4y-5)-(6y+4)
4(-ab-3a)+(9a+9b)15(abc-5a)+9(3a-3abc)
6(xy-9z)-(-xy-7z)-9(pq-pr)-(6pq+pr)
—x+—=—0.5x-0.3=0.6-3.2x
689
—+6x=7+—x6(x+3)+8(x-9)=14
96
—(7x-7)=—x-17x-3(5+x)=-7
75
y+3y+1
——=7-——2x+3(x-8)=40
25
—(4-2x)=—(3x+4)9(8x+1)=13
4—,3,0,0.8
—,22,-1,2
3
3—,3.4,-8,-0.8
(1)-20与-2
(2)-3.75与-1.75(3)|-4|与|2.4|
(4)-—与-—(5)-2与-|-8|(6)|-76.4|与|-7.3|
59
51
4+—+—1×
(-1)-28×
(-1)
312
119
(---)÷
-(-174)÷
(-18)
448
131
-(—-—-—)×
805×
[13-(-5)3]
445
2b-(9b+2)b+(4b+2s)-(7s+4b)
-3(6n-3)-8n8-(5y-5)+(2y-8)
4(ab+8a)+(2a-4b)5(abc-4a)-3(7a-3abc)
8(xy+9z)-(-xy+5z)-4(pq-pr)-(7pq-pr)
—x+—=—0.8x+0.7=7.5-4.5x
969
81
—-4x=2+—x5(x-3)-4(x+9)=20
77
—(8x-6)=—x+62x+3(6+x)=-5
45
y+1y-3
——=3+——4x+9.5(x+5)=15
45
—(5-4x)=—(5x-2)5(7x-8)=5
27